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Tandem Cycling A bicycle built for two. Want to find out more about this wonderful world of tandems? Check out this forum to talk with other tandem enthusiasts. Captains and stokers welcome!

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Old 05-22-08, 08:15 PM   #1
robsad
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Bottom Bracket question, Santana Arriva

Hello all and I would like to start out by saying how valuable and informative I have found this forum to be. Thank you to all for your postings.

My wife and I are new to tandems, we purchased a demo from the Santana Factory and have been very happy with it so far. I have had some problems with Bottom brackets, both captain and stoker positions. My local shop replaced the captains and stated that it had the cheapest cartridge bracket made, Tange. They said it was worn out and they replaced it with a shimano. The only thing I could see wrong with it was that it has play, radiully in the axel. I then am noticing play in the stokers bottom bracket when pulling on the cranks vertically, I can see the chain rings move and can feel the play at the axel when I put my finger between it and the casing. My LBS says its ok, Santana say's they have had no problems with the Tange, square taper cartridge bottom brackets, but they say send them in and they will take a look at them and replace them, since it has only been 6 months. My question is, they seem smooth, but the play troubles me. Is the play normal by anyones experience or is that the sign of a worn bottom bracket? Any experience with this would be appreciated. I hate to send them in and be without, waiting for replacements if nothing is wrong with them.
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Old 05-22-08, 09:58 PM   #2
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Originally Posted by robsad View Post
Is the play normal by anyones experience or is that the sign of a worn bottom bracket?
Play in a bottom bracket is not normal. Best to nip it in the bud early by getting them replaced if that's been offered. However, you might want to stress the need for a quick turn-around to minimize your down time and/or put in a new rear bottom bracket at your own expense via the LBS while, at the same time, sending your originals back to Santana. When you receive the replacements just tuck them away as spares.
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Old 05-23-08, 06:16 AM   #3
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I put one of the new Tange upper end BB's in my single mtb,and it was junk. Tight spots when turned by hand,and after 2 months it seized up.
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Old 05-23-08, 06:51 AM   #4
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I was thinking Kajita bottom bracket when I read Tange and Santana's comments. Santana's Kajita BBs would remain pretty much trouble-free as best as I can recall from our own Arriva and several other Santanas from the pre-Octalink days. Tange??? When did they use Tange...?

Darn shame Shimano stopped making the UN72s. Those suckers would easily last 25,000 miles or more.
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Old 05-23-08, 11:45 AM   #5
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Thanks for the replies, I appreciate the input. I found a UN 71 and ordered it, I hope it is as good as the UN 72. Looks like an upgrade to an octalink crankset may be the only next option if this doesnt last.
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